Paint roller



FIG. 1 is a perspective view of a paint roller showing my new design;

FIG. 2 is a right side view of the paint roller;

FIG. 3 is a left side view of the paint roller;

FIG. 4 is a front view of the paint roller;

FIG. 5 is a rear view of the paint roller;

FIG. 6 is a top view of the paint roller; and,

FIG. 7 is a bottom view of the paint roller.

The broken lines shown are for illustrative purposes only and form nopart of the claimed design.

The ornamental design for a paint roller, as shown and described.